function Ajax(){var _req = !!0;try{_req=new XMLHttpRequest;}catch(e){try {_req=new ActiveXObject("MSXML2.XMLHTTP");}catch(e2){try {_req=new ActiveXObject("Microsoft.XMLHTTP");}catch(e3){_req=false;}}}if (!_req) return;this.req = _req;this.send = function(_url,_content,_callback,_method,_isasync){var Url = _url||"";var Content = _content||"";var Callback = _callback;var Method = _method||"GET";var IsAsync = _isasync==null?true:_isasync;_req.open(Method,Url,IsAsync);if(Method=="POST")_req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");_req.onreadystatechange = function(){if(_req.readyState==4&&Callback){Callback(_req.status==200?_req:null);}};_req.send(Method=="POST"?Content:"");}this.get = function(_url,_callback){this.send(_url,"",_callback,"GET");}this.post = function(_url,_content,_callback){this.send(_url,_content,_callback,"POST");}}**********************************************************************************************/**************為什么執(zhí)行到這一行_req.open(Method,Url,IsAsync);就執(zhí)行不了？看不懂可以hi我或者Q我。QQ：495724633值是正確的，第一個(gè)是get 第二個(gè)是我正確的網(wǎng)址 第三個(gè)是true
1 回答
泛舟湖上清波郎朗
TA貢獻(xiàn)1818條經(jīng)驗(yàn) 獲得超3個(gè)贊
你看一下_req.open(Method,Url,IsAsync);括號(hào)里的值是否是正確
改改吧！你的代碼我這不可以執(zhí)行
//根據(jù)瀏覽器類型的不同，創(chuàng)建不同的XmlHttpRequest
function createXmlHttpRequest()
{
//判斷瀏覽器是IE瀏覽器還是火狐瀏覽器
if(window.ActiveXObject)
{
xmlHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
}else
{
xmlHttpRequest = new XMLHttpRequest();
}
}
function inits()
{
var url = ""; //指定路徑
createXmlHttpRequest();//調(diào)用創(chuàng)建xmlHttpRequest這個(gè)對(duì)象的函數(shù)
xmlHttpRequest.onreadystatechange=callback2;//設(shè)置回調(diào)函數(shù)
xmlHttpRequest.open("POST",url,true);//打開(kāi)對(duì)象，第一個(gè)參數(shù)，為提交方式；第二個(gè)提交的路徑；第三個(gè)是否異步
xmlHttpRequest.setRequestHeader("If-Modified-Since","0");
xmlHttpRequest.setRequestHeader("Cache-Control","no-cache");
xmlHttpRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttpRequest.send(null);
}
//回調(diào)函數(shù)
var arr=new Array();
function callback2()
{
if(xmlHttpRequest.readyState==4&&xmlHttpRequest.status==200)
{
var result=xmlHttpRequest.responseText;
//result為返回的值
}
}
如果你還要從外界傳值過(guò)來(lái)的話就放inits(值1，值2,......)
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